"Chase your dreams, little acorns."
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Let's start with "Acorn Graduation." It's all about that long-awaited first day of Hedgehog's training, met with the expected mix of conflicting emotions from our protagonist. At the very least, though, the deal is sweetened a bit with a letter from Ramona and a little caveat thrown in the mix: a magical punch card that Hedgehog can use to notify Ramona any time Susie gives her grief, which turns out to be... very often, and almost immediately, because she's Susie.
I'll admit that I've always been skeptical of the character in more commanding roles in the series. I feel like it's tough to work with characters like Susie who are powered by their self-absorption and transparent distaste for those around them, and truth be told, all of the episodes where she's been put more towards the front and center—"It's My Party" and "Mr. Softball," most notably—didn't work for me one bit. Her toxicity has always functioned best as either the dissenting voice of reason or the neglected voice of cruel authority, and "Acorn Graduation" really pushes that sometimes. There's an especially difficult stretch where Susie and Hedgehog are butting heads and power-tripping to such an unflattering extent that it becomes hard to really advocate for either character, with Susie being characteristically harsh and dismissive of the training she's putting Hedgehog through, and Hedgehog exploiting her punch card hoping it forces Susie to face hell from Ramona.